The amount of contributors is
a totally meaningless metric.
1. Not every contributor contributes equally. Some contributors work full time on the project, some work a few hours a month.
2. The amount of contributors says nothing about what resources are actually required. Rust is, no doubt, a more complex language than go and is also evolving faster.
3. The amount of contributors says nothing about the amount of contributors maintaining very niche parts of the ecosystem.
Golang's core dev team is something like 30 people.
So Rust does have the resources.